tag:blogger.com,1999:blog-21402852.post116144697238239972..comments2017-08-06T02:41:32.729+10:00Comments on The NXT STEP is EV3 - LEGO® MINDSTORMS® Blog: Reader submissionAsha Seshannoreply@blogger.comBlogger10125tag:blogger.com,1999:blog-21402852.post-1161956197155038892006-10-27T23:36:00.000+10:002006-10-27T23:36:00.000+10:00I was looking at this post again (In fact several ...I was looking at this post again (In fact several times) I think this is the MOST creative thing I have seen using LEGO and NXT!<BR/>Great work.. It is amazing!Will Georgenoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161630885359996642006-10-24T05:14:00.000+10:002006-10-24T05:14:00.000+10:00This is fantastic! The choice of music is especia...This is fantastic! The choice of music is especially nice.Tom Johnsonhttp://homepage.mac.com/aklego/iMovieTheater23.htmlnoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161566351729713162006-10-23T11:19:00.000+10:002006-10-23T11:19:00.000+10:00What a beautiful design! Good work!What a beautiful design! Good work!Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161562532616780322006-10-23T10:15:00.000+10:002006-10-23T10:15:00.000+10:00As to using the rotation sensor properly, the easi...As to using the rotation sensor properly, the easiest way to do it is have the NXT in contat with the computer (via BT or USB), and then select a Motor or Move block so you can see the configuration pane for it at the bottom. On the left edge of that pane is the feedback values from the motors, so you can see exactly how many degrees of change it will take to rotate those turntables exactly 90°. Then, use this value for a Move or Motor block of fixed duration (in degrees).<BR/><BR/>The only problem I can think of is if, perhaps, 90° of rotation of the turntable does not correspond to some integer number of degrees of rotation of the motor, there might be a slow "drift" over time. I can think of two way to fix this too: (a), fudge a few degrees every, say, 10 cycles or something, to reduce the drift, or (b) calculate the rotation off of a running continuous cumulative count, dividing by the appropriate integer to get the number of degrees to turn.<BR/><BR/>-- <BR/>Brian DavisBrian Davishttps://www.blogger.com/profile/13348160352741782598noreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161539249883153782006-10-23T03:47:00.000+10:002006-10-23T03:47:00.000+10:00>The whole thing was inspired by an RCX version I ...>The whole thing was inspired by an RCX version I saw on YouTube.<BR/><BR/>I saw that too, and had no idea what that was. The way of releasing the marbles is very innovative, I would not have thought of that.Iannoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161537148254752122006-10-23T03:12:00.000+10:002006-10-23T03:12:00.000+10:00KARL are you a packaging Engineer?REALLY REALLY RE...KARL are you a packaging Engineer?<BR/>REALLY REALLY REALLY nice work! AND it works!Will Georgenoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161509458435689832006-10-22T19:30:00.000+10:002006-10-22T19:30:00.000+10:00Hello Brian.I used the light sensor as I couldn't ...Hello Brian.<BR/>I used the light sensor as I couldn't work out how to use the rotation sensors properly, if someone could do a tutorial, including gears, that'd be brilliant.<BR/><BR/>The whole thing was inspired by an RCX version I saw on YouTube.<BR/><BR/>KarlKarlnoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161459690945081332006-10-22T05:41:00.000+10:002006-10-22T05:41:00.000+10:00Wow...The design is quite an accomplishment, I'd l...Wow...<BR/><BR/>The design is quite an accomplishment, I'd love to see a wholly mechanical version of this...Maniac was under the impression that henoreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161448995844647442006-10-22T02:43:00.000+10:002006-10-22T02:43:00.000+10:00One curious thing: he seems to use the light senso...One curious thing: he seems to use the light sensor to detect when a marble holder is in position (i.e., to sense the stop positions of the platforms). Odd, as since he's using the NXT motors to drive them, I should think he could use the motor encoders to do this right in the software. I'm not sure he's taking advantage of the full abilities of the NXT here, or maybe the precision isn't quite up to the task.<BR/><BR/>This is a great integration of the NXT, and the video is very well done. I think this design originated with Iain Hendry in Canada about four years ago, but I love the implementation every time I see it. Nicely done!<BR/><BR/>-- <BR/>Brian DavisBrian Davishttps://www.blogger.com/profile/13348160352741782598noreply@blogger.comtag:blogger.com,1999:blog-21402852.post-1161447191210137692006-10-22T02:13:00.000+10:002006-10-22T02:13:00.000+10:00The axle and gear that you use to tip the releases...The axle and gear that you use to tip the releases for the marbles... that's the kind of simplicity I love to see in designs... great work, Karl.<BR/><BR/>JimJim Kellyhttps://www.blogger.com/profile/13876934942928389738noreply@blogger.com